Reviewed-by: Zhiguang Liu <zhiguang....@intel.com> > -----Original Message----- > From: Ni, Ray <ray...@intel.com> > Sent: Tuesday, May 30, 2023 4:31 PM > To: devel@edk2.groups.io > Cc: Desimone, Nathaniel L <nathaniel.l.desim...@intel.com>; Liu, Zhiguang > <zhiguang....@intel.com> > Subject: [PATCH] SimicsOpenBoard: Use default 10ms as delay between INIT and > SIPI > > Today the delay is 10us but the QSP simulates the multiprocessor > by dividing time into segments and serializing processors within a > segment. > The length of the segment is configurable and Simics open board > is configured using 100us. > > But the firmware configures the delay between INIT and SIPI is 10us. > That results a possible senarino that BSP sends a INIT and SIPI in one > segment (100us) while APs are still in SMM environment. The INIT is > queued but SIPI is ignored by Simics, resulting all APs being put in > wait-for-SIPI state when they receive INIT. > > Signed-off-by: Ray Ni <ray...@intel.com> > Cc: Nate DeSimone <nathaniel.l.desim...@intel.com> > Cc: Zhiguang Liu <zhiguang....@intel.com> > --- > .../Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git > a/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc > b/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc > index 732d95e44f..06c479b619 100644 > --- > a/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc > +++ > b/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc > @@ -1,7 +1,7 @@ > ## @file > > # PCD configuration build description file for the X58Ich10 board. > > # > > -# Copyright (c) 2019 - 2022, Intel Corporation. All rights reserved. <BR> > > +# Copyright (c) 2019 - 2023, Intel Corporation. All rights reserved. <BR> > > # > > # SPDX-License-Identifier: BSD-2-Clause-Patent > > # > > @@ -148,7 +148,6 @@ > gPcAtChipsetPkgTokenSpaceGuid.PcdAcpiIoPortBaseAddressMask|0xFFFC > > gPcAtChipsetPkgTokenSpaceGuid.PcdAcpiPm1TmrOffset|0x0008 > > gUefiCpuPkgTokenSpaceGuid.PcdCpuApStackSize|0x1000 > > - gUefiCpuPkgTokenSpaceGuid.PcdCpuInitIpiDelayInMicroSeconds|10 > > gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber|512 > > gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmApSyncTimeout|10000 > > gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmStackSize|0x4000 > > -- > 2.37.2.windows.2
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